I need 3 monitors, what do I need or how can i accomplish it!?

Posted on 2010-01-06
Last Modified: 2013-11-06
I just bought a HP Pavillion p6234f desktop computer with windows 7 64bit. It has one expansion PCI slot and one expansion AGP slot.

In the AGP slot I have: GeForce 9400GT card. Which works great with 2 monitors. No problems.

Today, I tried installing a VisionTek X1300 256MB dual card to hook up my 3rd monitor. When it's installed windows takes foreverrrrrr to load up and then when it finally gets into windows, it only lets me use 1 monitor. The other 2 monitors are not seen.

Then, I tried removing the GeForce and having only the VisionTek, hooked up 2 monitors to it and it booted into windows fine, and worked... except it didn't "extend" to the 2nd monitor. Instead, it duplicated the first monitor, and there was no place to select the option to "extend" instead of "duplicate".

Any ideas?

Question by:tonyhhisc
    LVL 21

    Expert Comment


    make sure you have a vid card with at least 2 outputs...have the appropriate drivers...
    LVL 9

    Accepted Solution

    I've not had great success mixing ATI and Nvidia cards.  Certain models have worked together, but as a general rule, I stay away from it.

    We run 3-4 monitors on many of our work machines, and I use a dual-head Nvidia in the primary (AGP or PCI Express) slot, and a second Nvidia dual-head in the PCI slot.

    The main thing to check for is that the two cards are close enough in generations that you can use the same drivers on both cards.  Geforce drivers typically support 2-3 generations back, so that should be easy to do.

    Author Comment

    Thanks! I will try that.

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